What emotion does the poet feel when she sees her mother’s face?

When the poet Kamala Das sees her mother’s aged, pale face in My Mother at Sixty-six, she is overcome with a deep sense of fear and sadness. Her mother’s face, tired and lifeless like a “corpse,” makes her acutely aware of the fragility of life and the looming reality of loss. This sight stirs an intense, silent anxiety within her as she confronts the possibility of separation from her mother. Despite her efforts to remain composed, she feels a profound sorrow, revealing her vulnerability and love for her mother.

This question related to Poem 1 English Flamingo Class 12th NCERT.
From the Poem 1. My Mother at Sixty six.
Give answer according to your understanding.